ICALEPCS2011 - List of Authors (Dalesio, L.R.)

Paper

Title

Page

NSLS-II Beam Diagnostics Control System

168

Y. Hu, L.R. Dalesio, K. Ha, O. Singh, H. Xu
BNL, Upton, Long Island, New York, USA

A correct measurement of NSLS-II beam parameters (beam position, beam size, circulating current, beam emittance, etc.) depends on the effective combinations of beam monitors, control and data acquisition system and high level physics applications. This paper will present EPICS-based control system for NSLS-II diagnostics and give detailed descriptions of diagnostics controls interfaces including classifications of diagnostics, proposed electronics and EPICS IOC platforms, and interfaces to other subsystems. Device counts in diagnostics subsystems will also be briefly described.

Poster MOPKS004 [0.167 MB]

MOPKS015

Diagnostics Control Requirements and Applications at NSLS-II

192

Y. Hu, L.R. Dalesio, K. Ha, O. Singh
BNL, Upton, Long Island, New York, USA

To measure various beam parameters such as beam position, beam size, circulating current, beam emittance, etc., a variety of diagnostic monitors will be deployed at NSLS-II. The Diagnostics Group and the Controls Group are working together on control requirements for the beam monitors. The requirements are originated from and determined by accelerator physics. An attempt of analyzing and translating physics needs into control requirements is made. The basic functionalities and applications of diagnostics controls are also presented.

Poster MOPKS015 [0.142 MB]

WEPKN014

NSLS-II Filling Pattern Measurement

735

Y. Hu, L.R. Dalesio, K. Ha, I. Pinayev
BNL, Upton, Long Island, New York, USA

Multi-bunch injection will be deployed at NSLS-II. High bandwidth diagnostic monitors with high-speed digitizers are used to measure bunch-by-bunch charge variation. The requirements of filling pattern measurement and layout of beam monitors are described. The evaluation results of commercial fast digitizer Agilent Acqiris and high bandwidth detector Bergoz FCT are presented.

Poster WEPKN014 [0.313 MB]

WEPKN018

NSLS-II Vacuum Control for Chamber Acceptance

742

H. Xu, L.R. Dalesio, M.J. Ferreira, H.-C. Hseuh, D. Zigrosser
BNL, Upton, Long Island, New York, USA

Funding: Work supported by U.S. Department of Energy
The National Synchrotron Light Source II (NSLS-II) uses extruded aluminium chambers as an integral part of the vacuum system. Prior to installation in the Storage Ring all dipole and multipole chamber assemblies must be tested to ensure vacuum integrity. A significant part of the chamber test requires a full bakeout of the assembly, as well as control and monitoring of the titanium sublimation pumps (TSP), non-evaporable getter pumps (NEG) and ion pumps (IP). Data that will be acquired by the system during bakeouts includes system temperature, vacuum pressure, residual gas analyzer scans, ion pump current, TSP operation and NEG activation. This data will be used as part of the acceptance process of the chambers prior to the installation in the storage ring tunnel. This paper presents the design and implementation of the vacuum bakeout control, as well as related vacuum control issues.

Poster WEPKN018 [1.174 MB]

WEPKS020

Adding Flexible Subscription Options to EPICS

827

R. Lange
HZB, Berlin, Germany
L.R. Dalesio
BNL, Upton, Long Island, New York, USA
A.N. Johnson
ANL, Argonne, USA

Funding: Work supported by U.S. Department of Energy (under contracts DE-AC02-06CH11357 resp. DE-AC02-98CH10886), German Bundesministerium für Bildung und Forschung and Land Berlin.
The need for a mechanism to control and filter subscriptions to control system variables by the client was described in a paper at the ICALEPCS2009 conference.[1] The implementation follows a plug-in design that allows the insertion of plug-in instances into the event stream on the server side. The client can instantiate and configure these plug-ins when opening a subscription, by adding field modifiers to the channel name using JSON notation.[2] This paper describes the design and implementation of a modular server-side plug-in framework for Channel Access, and shows examples for plug-ins as well as their use within an EPICS control system.
[1] R. Lange, A. Johnson, L. Dalesio: Advanced Monitor/Subscription Mechanisms for EPICS, THP090, ICALEPCS2009, Kobe, Japan.
[2] A. Johnson, R. Lange: Evolutionary Plans for EPICS Version 3, WEA003, ICALEPCS2009, Kobe, Japan.

Poster WEPKS020 [0.996 MB]

WEPMN024

NSLS-II Beam Position Monitor Embedded Processor and Control System

932

K. Ha, L.R. Dalesio, J.H. De Long, J. Mead, Y. Tian, K. Vetter
BNL, Upton, Long Island, New York, USA

Funding: Work supported by DOE contract No: DE-AC02-98CH10886
NSLS-II is a 3 Gev 3rd generation light source that is currently under construction. A sub-micron Digital Beam Position Monitor (DBPM) system which is hardware electronics and embedded software processor and EPICS IOC has been successfully developed and tested in the ALS storage ring and BNL Lab.

FRBHMULT06

EPICS V4 Expands Support to Physics Application, Data Acsuisition, and Data Analysis

1338

L.R. Dalesio, G. Carcassi, M.A. Davidsaver, M.R. Kraimer, R. Lange, N. Malitsky, G. Shen
BNL, Upton, Long Island, New York, USA
T. Korhonen
Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
J. Rowland
Diamond, Oxfordshire, United Kingdom
M. Sekoranja
Cosylab, Ljubljana, Slovenia
G.R. White
SLAC, Menlo Park, California, USA

Funding: Work supported under auspices of the U.S. Department of Energy under Contract No. DE-AC02-98CH10886 with Brookhaven Science Associates, LLC, and in part by the DOE Contract DE-AC02-76SF00515
EPICS version 4 extends the functionality of version 3 by providing the ability to define, transport, and introspect composite data types. Version 3 provided a set of process variables and a data protocol that adequately defined scalar data along with an atomic set of attributes. While remaining backward compatible, Version 4 is able to easily expand this set with a data protocol capable of exchanging complex data types and parameterized data requests. Additionally, a group of engineers defined reference types for some applications in this environment. The goal of this work is to define a narrow interface with the minimal set of data types needed to support a distributed architecture for physics applications, data acquisition, and data analysis.

Slides FRBHMULT06 [0.188 MB]

Paper	Title	Page
MOPKS004	NSLS-II Beam Diagnostics Control System	168
	Y. Hu, L.R. Dalesio, K. Ha, O. Singh, H. Xu BNL, Upton, Long Island, New York, USA
	A correct measurement of NSLS-II beam parameters (beam position, beam size, circulating current, beam emittance, etc.) depends on the effective combinations of beam monitors, control and data acquisition system and high level physics applications. This paper will present EPICS-based control system for NSLS-II diagnostics and give detailed descriptions of diagnostics controls interfaces including classifications of diagnostics, proposed electronics and EPICS IOC platforms, and interfaces to other subsystems. Device counts in diagnostics subsystems will also be briefly described.
	Poster MOPKS004 [0.167 MB]

MOPKS015	Diagnostics Control Requirements and Applications at NSLS-II	192
	Y. Hu, L.R. Dalesio, K. Ha, O. Singh BNL, Upton, Long Island, New York, USA
	To measure various beam parameters such as beam position, beam size, circulating current, beam emittance, etc., a variety of diagnostic monitors will be deployed at NSLS-II. The Diagnostics Group and the Controls Group are working together on control requirements for the beam monitors. The requirements are originated from and determined by accelerator physics. An attempt of analyzing and translating physics needs into control requirements is made. The basic functionalities and applications of diagnostics controls are also presented.
	Poster MOPKS015 [0.142 MB]

WEPKN014	NSLS-II Filling Pattern Measurement	735
	Y. Hu, L.R. Dalesio, K. Ha, I. Pinayev BNL, Upton, Long Island, New York, USA
	Multi-bunch injection will be deployed at NSLS-II. High bandwidth diagnostic monitors with high-speed digitizers are used to measure bunch-by-bunch charge variation. The requirements of filling pattern measurement and layout of beam monitors are described. The evaluation results of commercial fast digitizer Agilent Acqiris and high bandwidth detector Bergoz FCT are presented.
	Poster WEPKN014 [0.313 MB]

WEPKN018	NSLS-II Vacuum Control for Chamber Acceptance	742
	H. Xu, L.R. Dalesio, M.J. Ferreira, H.-C. Hseuh, D. Zigrosser BNL, Upton, Long Island, New York, USA
	Funding: Work supported by U.S. Department of Energy The National Synchrotron Light Source II (NSLS-II) uses extruded aluminium chambers as an integral part of the vacuum system. Prior to installation in the Storage Ring all dipole and multipole chamber assemblies must be tested to ensure vacuum integrity. A significant part of the chamber test requires a full bakeout of the assembly, as well as control and monitoring of the titanium sublimation pumps (TSP), non-evaporable getter pumps (NEG) and ion pumps (IP). Data that will be acquired by the system during bakeouts includes system temperature, vacuum pressure, residual gas analyzer scans, ion pump current, TSP operation and NEG activation. This data will be used as part of the acceptance process of the chambers prior to the installation in the storage ring tunnel. This paper presents the design and implementation of the vacuum bakeout control, as well as related vacuum control issues.
	Poster WEPKN018 [1.174 MB]

WEPKS020	Adding Flexible Subscription Options to EPICS	827
	R. Lange HZB, Berlin, Germany L.R. Dalesio BNL, Upton, Long Island, New York, USA A.N. Johnson ANL, Argonne, USA
	Funding: Work supported by U.S. Department of Energy (under contracts DE-AC02-06CH11357 resp. DE-AC02-98CH10886), German Bundesministerium für Bildung und Forschung and Land Berlin. The need for a mechanism to control and filter subscriptions to control system variables by the client was described in a paper at the ICALEPCS2009 conference.[1] The implementation follows a plug-in design that allows the insertion of plug-in instances into the event stream on the server side. The client can instantiate and configure these plug-ins when opening a subscription, by adding field modifiers to the channel name using JSON notation.[2] This paper describes the design and implementation of a modular server-side plug-in framework for Channel Access, and shows examples for plug-ins as well as their use within an EPICS control system. [1] R. Lange, A. Johnson, L. Dalesio: Advanced Monitor/Subscription Mechanisms for EPICS, THP090, ICALEPCS2009, Kobe, Japan. [2] A. Johnson, R. Lange: Evolutionary Plans for EPICS Version 3, WEA003, ICALEPCS2009, Kobe, Japan.
	Poster WEPKS020 [0.996 MB]

WEPMN024	NSLS-II Beam Position Monitor Embedded Processor and Control System	932
	K. Ha, L.R. Dalesio, J.H. De Long, J. Mead, Y. Tian, K. Vetter BNL, Upton, Long Island, New York, USA
	Funding: Work supported by DOE contract No: DE-AC02-98CH10886 NSLS-II is a 3 Gev 3rd generation light source that is currently under construction. A sub-micron Digital Beam Position Monitor (DBPM) system which is hardware electronics and embedded software processor and EPICS IOC has been successfully developed and tested in the ALS storage ring and BNL Lab.

FRBHMULT06	EPICS V4 Expands Support to Physics Application, Data Acsuisition, and Data Analysis	1338
	L.R. Dalesio, G. Carcassi, M.A. Davidsaver, M.R. Kraimer, R. Lange, N. Malitsky, G. Shen BNL, Upton, Long Island, New York, USA T. Korhonen Paul Scherrer Institut, 5232 Villigen PSI, Switzerland J. Rowland Diamond, Oxfordshire, United Kingdom M. Sekoranja Cosylab, Ljubljana, Slovenia G.R. White SLAC, Menlo Park, California, USA
	Funding: Work supported under auspices of the U.S. Department of Energy under Contract No. DE-AC02-98CH10886 with Brookhaven Science Associates, LLC, and in part by the DOE Contract DE-AC02-76SF00515 EPICS version 4 extends the functionality of version 3 by providing the ability to define, transport, and introspect composite data types. Version 3 provided a set of process variables and a data protocol that adequately defined scalar data along with an atomic set of attributes. While remaining backward compatible, Version 4 is able to easily expand this set with a data protocol capable of exchanging complex data types and parameterized data requests. Additionally, a group of engineers defined reference types for some applications in this environment. The goal of this work is to define a narrow interface with the minimal set of data types needed to support a distributed architecture for physics applications, data acquisition, and data analysis.
	Slides FRBHMULT06 [0.188 MB]